rpaphp.h revision 0945cd5f908a09ad99bf42d7ded16f26f24f317d 
1/*
2 * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform.
3 *
4 * Copyright (C) 2003 Linda Xie <lxie@us.ibm.com>
5 *
6 * All rights reserved.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or (at
11 * your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
16 * NON INFRINGEMENT.  See the GNU General Public License for more
17 * details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 * Send feedback to <lxie@us.ibm.com>,
24 *
25 */
26
27#ifndef _PPC64PHP_H
28#define _PPC64PHP_H
29
30#include <linux/pci.h>
31#include "pci_hotplug.h"
32
33#define	PHB     2
34#define	HOTPLUG	1
35#define	EMBEDDED 0
36
37#define DR_INDICATOR 9002
38#define DR_ENTITY_SENSE 9003
39
40#define POWER_ON	100
41#define POWER_OFF	0
42
43#define LED_OFF		0
44#define LED_ON		1	/* continuous on */
45#define LED_ID		2	/* slow blinking */
46#define LED_ACTION	3	/* fast blinking */
47
48/* Sensor values from rtas_get-sensor */
49#define EMPTY           0	/* No card in slot */
50#define PRESENT         1	/* Card in slot */
51
52#define MY_NAME "rpaphp"
53extern int debug;
54#define dbg(format, arg...)					\
55	do {							\
56		if (debug)					\
57			printk(KERN_DEBUG "%s: " format,	\
58				MY_NAME , ## arg); 		\
59	} while (0)
60#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
61#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
62#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
63
64/* slot states */
65
66#define	NOT_VALID	3
67#define	NOT_CONFIGURED	2
68#define	CONFIGURED	1
69#define	EMPTY		0
70
71/*
72 * struct slot - slot information for each *physical* slot
73 */
74struct slot {
75	struct list_head rpaphp_slot_list;
76	int state;
77	u32 index;
78	u32 type;
79	u32 power_domain;
80	char *name;
81	char *location;
82	u8 removable;
83	struct device_node *dn;
84	struct pci_bus *bus;
85	struct list_head *pci_devs;
86	struct hotplug_slot *hotplug_slot;
87};
88
89extern struct hotplug_slot_ops rpaphp_hotplug_slot_ops;
90extern struct list_head rpaphp_slot_head;
91extern int num_slots;
92
93/* function prototypes */
94
95/* rpaphp_pci.c */
96extern int rpaphp_claim_resource(struct pci_dev *dev, int resource);
97extern int rpaphp_enable_pci_slot(struct slot *slot);
98extern int register_pci_slot(struct slot *slot);
99extern int rpaphp_unconfig_pci_adapter(struct slot *slot);
100extern int rpaphp_get_pci_adapter_status(struct slot *slot, int is_init, u8 * value);
101
102/* rpaphp_core.c */
103extern int rpaphp_add_slot(struct device_node *dn);
104extern int rpaphp_remove_slot(struct slot *slot);
105extern int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
106		char **drc_name, char **drc_type, int *drc_power_domain);
107
108/* rpaphp_slot.c */
109extern void dealloc_slot_struct(struct slot *slot);
110extern struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
111extern int register_slot(struct slot *slot);
112extern int deregister_slot(struct slot *slot);
113extern int rpaphp_get_power_status(struct slot *slot, u8 * value);
114extern int rpaphp_set_attention_status(struct slot *slot, u8 status);
115
116#endif				/* _PPC64PHP_H */
117